<template>
    <div>
        <!-- 面包屑导航 -->
        <el-breadcrumb separator="/">
              <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
              <el-breadcrumb-item><a href="/">用户管理</a></el-breadcrumb-item>
              <el-breadcrumb-item>用户列表</el-breadcrumb-item>
        </el-breadcrumb>
        <!-- 卡片视图 -->
        <el-card class="box-card">
            <!-- 搜索与添加区域 -->
          <el-row :gutter="20">
              <el-col :span="9">
                <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getUserList()">
                      <el-button slot="append" icon="el-icon-search" @click="getUserList()"></el-button>      
                </el-input>
              </el-col>
              <el-col :span="4">
                  <el-button type="primary" @click="addDialogVisible = true">添加用户</el-button>
              </el-col>
          </el-row>
          <!-- 用户列表 -->
          <el-table :data="userlist" border stripe>
              <el-table-column type="index"></el-table-column>
              <el-table-column prop="username" label="姓名"></el-table-column>
              <el-table-column prop="email" label="邮箱"></el-table-column>
              <el-table-column prop="mobile" label="电话"></el-table-column>
              <el-table-column prop="role_name" label="角色"></el-table-column>
              <el-table-column prop="mg_state" label="状态">
                  <template v-slot="scope">
                      <el-switch v-model="scope.row.mg_state" @change="userStateChange(scope.row)">
                      </el-switch>
                  </template>
              </el-table-column>
              <el-table-column label="操作" :width="300">
                  <template v-slot="scope">
                         <el-tooltip effect="dark" content="编辑用户" placement="top" :enterable="false">
                            <el-button icon="el-icon-edit" type="primary" size="mini" @click="editUser(scope.row.id)"></el-button>
                         </el-tooltip>
                          <el-tooltip effect="dark" content="删除用户" placement="top" :enterable="false">
                            <el-button icon="el-icon-delete" type="danger" size="mini" @click="removeUserById(scope.row.id)"></el-button>
                         </el-tooltip> 
                          <el-tooltip effect="dark" content="分配角色" placement="top" :enterable="false">
                            <el-button icon="el-icon-setting" type="warning" size="mini" @click="setRole(scope.row)"></el-button>
                         </el-tooltip>     
                  </template>                    
              </el-table-column>
          </el-table>
          <!-- 分页区域 -->
          <el-pagination @size-change="handleSizeChange" @current-change="handleCurrentChange" :current-page="queryInfo.pagenum" :page-sizes="[1, 2, 5, 10]" :page-size="queryInfo.pagesize" layout="total, sizes, prev, pager, next, jumper" :total="total">
          </el-pagination>
        </el-card>
        <el-dialog title="添加用户" :visible.sync="addDialogVisible" width="50%" @close="addDialogClosed">
          <!-- 添加用户对话框信息 -->
          <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="100px" class="demo-ruleForm">
            <el-form-item label="用户名" prop="username">
              <el-input v-model="addForm.username"></el-input>
            </el-form-item>
            <el-form-item label="密码" prop="password">
              <el-input v-model="addForm.password"></el-input>
            </el-form-item>
            <el-form-item label="邮箱" prop="email">
              <el-input v-model="addForm.email"></el-input>
            </el-form-item>
            <el-form-item label="手机" prop="mobile">
              <el-input v-model="addForm.mobile"></el-input>
            </el-form-item>
          </el-form>
          <span slot="footer" class="dialog-footer">
            <el-button @click="addDialogVisible = false">取 消</el-button>
            <el-button type="primary" @click="addUser">确定</el-button>
          </span>
        </el-dialog>
        <!-- 编辑用户对话框 -->
        <el-dialog title="编辑用户" :visible.sync="editDialogVisible" width="50%" @close="editDialogClosed">
          <el-form ref="editFormRef" :model="editForm" :rules="editFormRules" label-width="70px">
            <el-form-item label="用户名">
              <el-input v-model="editForm.username" disabled></el-input>
            </el-form-item>
            <el-form-item label="邮箱" prop="email">
              <el-input v-model="editForm.email"></el-input>
            </el-form-item>
            <el-form-item label="电话" prop="mobile">
              <el-input v-model="editForm.mobile"></el-input>
            </el-form-item>
          </el-form>
          <span slot="footer" class="dialog-footer">
            <el-button @click="editDialogVisible = false">取 消</el-button>
            <el-button type="primary" @click="editUserInfo">确 定</el-button>
          </span>
        </el-dialog>
        <!-- 分配角色对话框 -->
        <el-dialog title="提示"  :visible.sync="setRoleDialogVisible" width="50%" @close="closeRoleDialogVisible">
          <p>{{userRole.username}}</p>
          <p>{{userRole.role_name}}</p>
          <p>请选择要分配的角色:
                <el-select v-model="rolesValueId" placeholder="请选择">
                   <el-option v-for="item in roleslist" :key="item.id" :label="item.roleName" :value="item.id">
                   </el-option>
                 </el-select>
          </p>
          <span slot="footer" class="dialog-footer">
            <el-button @click="setRoleDialogVisible = false">取 消</el-button>
            <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
          </span>
        </el-dialog>
        
    </div>
</template>


<script>
export default {
    data() {
        return{
            queryInfo: {
                query: '',
                // 当前页数
                pagenum: 1,
                // 当前每页显示多少条数据
                pagesize: 2
            },
            userlist: [],
            // 总数据
            total: 0 ,
            // 编辑对话框显示与隐藏
            editDialogVisible: false,
            // 查询到的用户对象
            editForm: {},
            // 添加用户的验证规则
            editFormRules: {
                email: [{required: true,message: '请输入邮箱',trigger: 'blur'}],
                mobile: [{required: true,message: '请输入手机号码',trigger: 'blur'}],
            },
            // 添加用户对话框显示与隐藏
            addDialogVisible: false,
            // 添加用户的表单数据
            addForm:{
                username: '',
                password: '',
                email: '',
                mobile: ''
            },
            // 添加用户的验证规则
            addFormRules: {
                username: [{required: true,message: '请输入用户名',trigger: 'blur' //触发验证的时机  blur失去焦点                   
                           },{min: 3, max: 10, message: '用户名的长度在3~10个字符之间',trigger: 'blur'}
                          ],
                password: [{required: true,message: '请输入密码',trigger: 'blur'
                           },{min: 6, max: 15,message: '密码的长度在6~15个字符之间',trigger: 'blur'}
                          ],
                email: [{required: true,message: '请输入邮箱',trigger: 'blur'}],
                mobile: [{required: true,message: '请输入手机号码',trigger: 'blur'}],
            },
            setRoleDialogVisible: false,
            userRole: {},
            roleslist: [],
            rolesValueId: ''

        }
    },
    created() {
        this.getUserList()
    },
    methods: {
        async getUserList() {
         const { data : res}  = await this.$http.get('users', { params: this.queryInfo})
         if(res.meta.status !== 200){
                return this.$message.error('获取数据失败')
         }
         this.userlist = res.data.users
         this.total = res.data.total
        },
        // 监听pageSize改变的事件
        handleSizeChange(newSize) {
            this.queryInfo.pagesize = newSize
            this.getUserList()
        },
        // 监听 页码值改变的事件
        handleCurrentChange(newPage) {
            this.queryInfo.pagenum = newPage
            this.getUserList()
        },
        // 更新用户状态
        async userStateChange(userInfo) {
          const {data : res} = await this.$http.put(`users/${userInfo.id}/state/${userInfo.mg_state}`)
          if(res.meta.status !== 200){
              userInfo.mg_state = !userInfo.mg_state
              return this.$message.error("更新用户状态失败")
          }
          this.$message.success('更新用户状态成功!')
        },
        // 监听添加用户对话框的关闭事件
        addDialogClosed() {
            this.$refs.addFormRef.resetFields()
        },
        // 点击按钮添加新用户
        addUser() {
            // 校验
            this.$refs.addFormRef.validate(async valid => {
                if (!valid) return
                // 发起添加用户请求
                const { data: res } = await this.$http.post('users',this.addForm)
                if(res.meta.status !== 201 ){
                    this.$message.error('添加用户失败')
                }
                this.$message.success('添加用户成功')
                this.addDialogVisible = false
                this.getUserList()
            })
        },
        // 编辑用户
        async editUser(id) {
            this.editDialogVisible = true
            const { data: res} = await this.$http.get('users/' + id)
            if(res.meta.status !== 200){
                return this.$message.error('查询用户失败')
            }
            this.editForm = res.data
        },
        // 监听编辑用户对话框的关闭事件
        editDialogClosed() {
            this.$refs.editFormRef.resetFields()
        },
        // 修改用户信息与提交
        editUserInfo() {
            // 预校验
            this.$refs.editFormRef.validate(async valid => {
                if (!valid) return
                // 发起修改用户信息的数据请求
                const{ data: res} = await this.$http.put('users/' + this.editForm.id, {email: this.editForm.email,mobile: this.editForm.mobile})
                if(res.meta.status !== 200){
                    return this.$message.error('更新用户信息失败')
                }
                // 关闭对话框
                this.editDialogVisible = false
                // 更新数据
                this.getUserList()
                // 提示修改成功
                this.$message.success('更新用户信息成功')
            })
        },
        async removeUserById(id){
            const confirmResult = await this.$confirm(
                '此操作将永久删除该用户, 是否继续?',
                 '提示', 
                 {
                    confirmButtonText: '确定',
                    cancelButtonText: '取消',
                    type: 'warning'
                }
                ).catch(err => err)
            if(confirmResult !== 'confirm') {
                return this.$message.info('已取消删除')
            }
            const {data : res} = await this.$http.delete('users/' + id)
            if(res.meta.status !== 200){
                return this.$message.error('删除用户失败')
            }
            this.$message.success('删除用户成功')
            this.getUserList()
        },
        async setRole(userInfo) {
            this.userRole = userInfo
            const {data: res} = await this.$http.get('roles')
            if(res.meta.status !== 200) {
                return this.$message.error('获取角色列表失败')
            }
            this.roleslist = res.data
            this.setRoleDialogVisible = true
        },
        async saveRoleInfo() {
            if(!this.rolesValueId){
                return this.$message.error('请选择要分配的角色')
            }
           const {data:res} = await this.$http.put(`users/${this.userRole.id}/role`,{rid: this.rolesValueId})
           if(res.meta.status !== 200) {
               return this.$message.error('分配角色失败')
           }
           this.$message.success('分配角色成功')
           this.getUserList()
           this.setRoleDialogVisible = false
        },
        closeRoleDialogVisible() {
                this.rolesValueId = ''
                this.userRole = {}
        }

    }
}
</script>

<style lang="less" scoped>

</style>